Evaluation Of Supporting Policies Of Photovoltaic Industry Based On Spatial Econometric Model

More and more serious environmental pollution and the lacking of fossil energy are forcing people turn to develop and use new energy, and solar energy just wins the favor of the public for its cleanness and its inexhaustibility. Since the 21 st century, with the increasing of China's demand for clean energy and the effect of international political and economic environment, the photovoltaic(PV) industry in our country has been developing rapidly, especially in recent years, China has started to advocate PV grid-connected, various kinds of supporting policies were released frequently to promote the development of PV industry, leading a substantial growth in the PV generation of China, which indicates that the PV industry is about to enter a new development phase.On the basis of summarizing previous PV research literature, this paper overviews China's PV industry development history and gives a brief description of the PV policy measures of China and some typical developing countries such as Germany, Japan and the U.S., analyzing several key factors which may have an effect on the development of PV industry. After that it selects China's provincial data of PV installed capacity from 2009 to 2014 as panel data, and a Moran's I test for spatial dependence is taken. It is found that the PV installed capacity does not show a positive significant correlation until the year 2012. Based on this, this paper establishes a spatial econometric model which adopts PV policy and other impact factors as explanatory variables so as to evaluate and analyze the policy implementation effects of the initial subsidy, feed-in tariff and electricity subsidy respectively. The research result shows that from the year 2012 to 2014, the initial subsidy, feed-in tariff policy and electricity subsidy all have positive effects on PV installed capacity to different extent. At last, the paper reveals some existing problems in the PV industry of China combining with the policies implemented by countries which are advanced in PV industry, and puts forward rationalization proposals concerning the improvement of PV policies and institutions as well as the direction of future industrial development.